Grain-separator



(No Model.)

J. H. LOUDENBEOK.

' 4 GRAIN SBPARA' I'OR. o. 279,491.

Patented June 12,1883.

UNITED STATES PATENT OFFICE.

JOHN H. LOUDENBEOK, OF UNION, ILLINOIS.

GRAlN-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 279,491, dated June 12, 1883. Application filed November 17, 1882. (No model.)

To all whpm it may concern:

Be it known that 1, JOHN H. LOUDENBEOK, of Union, in the county of McHenry,- and in the State of Illinois, have invented certain new and useful Improvements in'Grain-Separators and I do hereby declare that, the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

This invention relates to certain improve ments in grain-separators; and it has for its object to provide an improved sieve for such machines, and mechanism to prevent the sieves from clogging, as more fully hereinafter specified. These objects I attain by the means illustrated in the accompanying drawings, in which Figure 1 represents a view of a thrashingmachine, showing my invention applied thereto 5 and Fig. 2, a vertical longitudinal section of a portion of such machine, showing my in vention in detail.

" -A indicates the shoe in which the sieves Y B are located, the said shoe being hung in the machine in the usual manner, as indicated in Fig. 1 of the drawings. Two sieves are employed, as shown in Fig. 2, the smaller one being set at a slight inclination to the other, the said sieves being formed with ledges .b at the sides, which are secured to the sides of the shoe by means of nails or other fastening devices. The sieves are constructed of partially-perforated metal, the lips formed being inclined upward and in the direction of the travel of the thrashed-straw and grain, as indicated. These perforations are formed in alternating rows, as indicated. A slight space is left between the adjacent ends of the sieves, the lower end of the small sieve setting slightly below the end of the other sieve. 0 indicates an air-passage, through' which the air from the fan passes to the upper sur faces of the sieves, and D a passage for the air to enter below the sieves. Above the sieves is j ournaled a transverse shaft, E, which is provided with a series of curved fingers, F, the journal of the shaft at one sidepassing through the side of the machine, and being provided with a pulley, H, by means of which a suitable rotary motion may be given to the shaft by a suitable band from a proper driving-pulley in the direction of the travel of the thrashed straw and grain, as indicated 5 5 by the arrow on the drawings, whereby the same is assisted in passing over the sieves. At the bottom, near the rear end of the shoe, is a transverse trough, I, which inclines to one side, and serves to discharge the grain.

- As the other parts of the machine, as shown in Fig. 1,'form no part of my invention, a description of such parts is deemed unnecessary.

The thrashed grain passes through the shoe andover the sieves in the usual manner, and is subjected to the air-blast from the fan. The curved fingers on the rotary shaft, before mentioned, which travel in the direction of the arrows keeps the chaff loose, and prevents the same from clogging the sieves. The grain drops through the openings, as in the ordi-. nary sieves, and the chaff is carried off at the tail of the machine as usual.

I would not have it understood that I am intending to claim, broadly, the combination, in athrashing-machine shoe, of sieves inclined in opposite directions with rotary beaters, since the same has heretofore, in this broad sense, been accomplished but what I do claim is the peculiar arrangement and constructionof the parts hereinafter pointed out specifically in my claim.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

The combination, in the shoeof a grainseparator, 'of a long and a short sieve, having a space between their adjacent ends approximately over a transverse discharge-spout, and arranged at an angle to each other, the said sieves beiug provided with punched apertures and lips extending upward and in the direction of the travel of the thrashed straw and grain, with the transverse rotary shaft provided with arms adapted to rotate in the direction of the inclination of the sieve-lips, the

lips serving to assist the thrashed straw and grain in passing over the sieves, and the arms serving to feed it through the shoe, substantially as shown.

In testimony whereof I aflix my signature, in presence of two witnesses, this 7th day of October, 1882. j,

' JOHN H. LOUDENBEOK. Witnesses:

J. .M. MARKS, THOMAS BRIGHT.

IOO 

